Water heater and boiler



E 1946. B. 1. J. STAMM WATER HEATER AND BOILER Filed June 19, 1944IEa-Q-l m m 5 n In .1 .w I n x .INVENTbR. 5.1127. 62% N/V Patented Get.8, 1946 UNITED STATES PATENT OFFICE It is an object of this invention toproduce a multiple chambered heater for water.

It is an object of this invention to produce a heater which is speciallyconstructed to produce a rapid and forced transfer of heated water aswell as water being heated from the heating chamber to a draw-offchamber.

It is an object of this invention to produce a special constructionwherein the water being heated is confined in spaces representing smallvolumes of the water content as compared with the whole volume containedin the device.

It. is an object of this invention to provide a water heating tankhaving a plurality of chambers in which water is substantially trappedfor controlled heating and transfer from the lowest chamber to thetopmost chamber. Although the Water is substantially trapped in eachchamber, all of the chambers are in communication with each other.

Further objects of the invention and other features of novelty will berevealed as the drawing is described in detail. The drawing is merelyillustrative of one embodiment of my invention.

Figure 1 is substantially a vertical longitudinal centrally locatedsection of my invention.

Figure 2 is a transverse section on the line 2-2 of Figure 1 looking inthe direction of the arrows.

In the drawing like reference characters refer to like parts.

My water heater comprises a hollow body provided with an outer wall I, atop wall 2 and a bottom wall 3. The outer wall 1 is extended below thebottom wall 3 to form a skirt 4 to provide a compartment for the heaterelement H which is suitably spaced from the bottom wall 3. The top andbottom walls are connected by a plurality of fiues 5 which may befastened at their ends by any suitable means such as welding (notshown).

The hollow body is divided into three chambers by a pair of partitions 6and l which are respectively spaced and secured to define a largecentral storage chamber and smaller chambers at the top and bottom of myheater. The pair of partitions 6 and l are connected by tubes 8, *9 andH! which are arranged to surround the fiues 5 in suitably spacedrelation thereto and concentric with their companion flues to definetransfer or circulating conduits H for the water being heated by thefines 5. The partitions 5 and 'l are also connected by a down-flow tubel 2 which, together with conduits ll, form a complete liquid circuit orpath for a forced circulation of 10 Claims. (Cl. 12217) water betweenthe lower and upper chambers.

The fiues 5 and the companion tubes 8,9 and ill may be arranged insubstantially concentric relation to each other and to aid inmaintaining a suitably spaced relation between the flues and thecompanion tubes spacing elements i3 may be secured to the tubes 8, 9 andIi! or to the fines 5 or to both, as by welding or other suitable means.

The lower portion of the large central chamber is connected to the upperchamber by suitable sections l4 and 15 of a pipe having its saidsections detachably connected by a union it. By using a union the pipesections Hi and 15 may be screwed into threaded openings formed in thewall of the tank or body and then disposed in alignment and connectedwith each other. The upper chamber containing the heated water isprovided with an outlet ll whereby hot water may be drawn off from theheater.

The central chamber is provided with a suitable inlet 18 toautomatically replace the volume of water drawn oil". Both the upper andlower chambers are provided with clean out openings l9, 2!) and '2 I,having screw threaded portions to receive threaded plugs.

It is to be noted that all outside connections and clean out openingsare provided with screw threaded bosses to provide suitably enlarged orelongated screw threaded connections whereby the pipes andplugs may besecurely fastened.

The top 2 and the bottom 3 may be welded to and thereby sealed withinthe wall l or secured by other or additional means such as rivets.

It is also noted that I have shown three upflow conduits H and only onedown-flow tube, but it is understood that the number of up-fiow conduitsand down-flow tubes is purely a question of a suitable number andsuitable size to produce rapid heating and efiioient results.

It is also to be noted that the down-flow tube i2 extends to a lowerlevel than the lower ends of the tubes 8, 9, and Hi. This feature aidsin the circulation of the water between the upper and lower chambers.The large central chamber is a storage chamber which is heated much moreslowly than the smaller chambers.

Let us assume the heater is full of water and the heating element H isturned on and ignited to start the heating operation. The flames arisingfrom the element set up heated convection currents which pass rapidly upthe flues 5, heating the surrounding water in the conduits H formed bythe tubes 8, 9, and I8, and since the volume of water is small betweenthe dues 5 and tubes 8, 9, and I 0, it is rapidly heated and is forcedto rise rapidly to the upper chamber. The upward surge or flow in theconduits ii is compensated or balanced by a rapid down flow through thetube I2. The heat of radiation from the element H heats the water in thelower chamber and aids in the upward flow of heating water in theconduits H and consequently, assists in the forced downward flow in thedown-tube l2. The central chamber of water is being slowly heated bycontact with the tubes 8, 9, l and i2 and the partitions B and 1. Whenwater is drawn off through the outlet IT, the drawnoff water isinstantly replaced through the inlet l8 through the central chamberwhich is in communication with the upper chamber through the pipesections 14 and I and the detachable joint IS. The central chamberserves as a storage reservoir for warm water after intervals of heating.When suflicient water has been heated for the purpose intended, the flowof fluid into the heating element may be turned off.

From the foregoing description, the construction and operation of myimproved water heater and boiler will be readily understood and it willbe seen that I have provided a comparatively simple, inexpensive andeflicient means for carrying out the various objects of the invention.

While I have particularly described the elements best adapted to performthe functions set forth, it is apparent that various changes in form,proportion and in the minor details of construction, may be resorted to,without departing from the spirit or sacrificing any of the principlesof the invention.

Having fully disclosed my invention, what I claim is:

l. A water heater comprising an outer wall and top and bottom wallsdefining a water containing vessel or tank and a skirt portion defininga compartment adapted to receive a heating element, said tank having apair of partitions located respectively near the top and bottom of saidtank and defining a large central chamber and smaller chambers at thetop and bottom of said tank, said top and bottom walls being connectedby a plurality of heating fiues, said partitions being connected bywater confining tubes, said tubes being arranged in closely spacedrelation about companion flues, said partitions being also connectedwith a down-flow tube in direct communication with the upper and lowerchambers and an up-feed pipe supported by said heater making directcommunication with the upper chamber and the lower portion of thecentral chamber, in combination with a feed water inlet connected to thecentral chamber and a dispensing outlet connected with the upperchamber.

2. The water heater as set forth in claim 1 in which the up-feed pipe issupported on the outside of the tank by the outer wall of the tank.

3. The water heater as set forth in claim 1 in which the upfeed pipecomprises sections connected by a detachable union.

4. The water heater as set forth in claim 1 in which the down flow tubeis centrally located and supported by said partitions.

5. The water heater as set forth in claim 1 in which the flues andconfining tubes are substantially and concentrically arranged withrespect to each other.

6. A water heater having a hollow body having top and bottom walls, saidhollow body containing partitions dividing said body into a largecentral storage chamber and an upper draw-off chamber and a lowerheating chamber, said top and bottom walls being connected by waterheating fiues which extend longitudinally through the top and bottomwalls of the said hollow body, said partitions being connected by tubesextending entirely and longitudinally through the centralstoragechamber, said tubes surrounding said flues and being narrowlyspaced therefrom, said partitions being also connected by a downflowtube having its lower end portion extending to a lower level than thelower ends of the other tubes, said central chamber having an inletportion, said upper chamber having an outlet por tion, said centralchamber being connected to the outlet chamber by connected sections ofpipe '7. The water heater specified in claim 6 in which the surroundingtubes of the flues are arranged in substantially spaced relationconcentrically thereof.

8. The water heater specified in claim 6 in which the surrounding tubesof the fiues are maintained in spaced relation by means located betweensaid tubes and said flues, said means being secured in their locatedpositions by suitable fastening means.

9. In a water heater, a vertically disposed cylindrical tank open at itslower end having a head at its upper end, said tank being of an evendiameter throughout its height, a lower head fitting snugly in said tankand having sealed engagement with the wall of the tank in upwardlyspaced relation to the lower end of the tank to provide a heatingchamber in the tank under the lower head, horizontal partitions fittingsnugly in said tank and having sealed engagement with the wall of thetank in spaced relation to the upper and lower heads and dividing thetank into a main chamber and upper and lower chambers, fluxes extendingvertically in said tank through said chambers and having their endsmounted through the upper and lower heads, tubes about said flues inconcentric spaced relation thereto and having their ends mounted throughsaid partitions and defining passages about said tubes, and a tubeextending vertically in the tank centrally thereof with its ends mountedthrough said partitions and its lower end terminating adjacent the lowerhead whereby water flowing downwardly through the central tube will bedischarged therefrom into contact with the lower head.

10. In a water heater, a vertically disposed cylindrical tank havingupper and lower heads and a heating chamber under the lower head,partitions in said tank having sealed engagement with the wall of thetank and spaced from said heads and dividing the tank into a main waterchamber and upper and lower water chambers, a pipe extending verticallythrough the main water chamber with its ends passing through saidpartitions and its lower end entering the lower chamber and terminatingadjacent the lower head for discharge of water against the lower head,flues extending vertically in said tank and passing through said chamberwith their ends mounted through the upper and lower heads, and tubessurrounding said fiues in spaced relation thereto with their endsmounted through said partitions and establishing communication betweenthe upper and lower water chambers, there being an inlet for the mainchamber and an outlet for the upper water chamber.

BENJAMIN I. J. STAMM.

